添加项目文件。

2026-07-14 13:55:17 +08:00
parent 63759495f2
commit 8bbdf78731
335 changed files with 81415 additions and 0 deletions
@@ -0,0 +1,127 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.Sockets;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace JY.Inspection
+{
+    /// <summary>
+    /// 设置电脑时间
+    /// </summary>
+    public class DateTimeSynchronization
+    {
+        [StructLayout(LayoutKind.Sequential)]
+        private struct Systemtime
+        {
+            public short year;
+            public short month;
+            public short dayOfWeek;
+            public short day;
+            public short hour;
+            public short minute;
+            public short second;
+            public short milliseconds;
+        }
+
+        [DllImport("kernel32.dll")]
+        private static extern bool SetLocalTime(ref Systemtime time);
+
+        private static uint swapEndian(ulong x)
+        {
+            return (uint)(((x & 0x000000ff) << 24) +
+            ((x & 0x0000ff00) << 8) +
+            ((x & 0x00ff0000) >> 8) +
+            ((x & 0xff000000) >> 24));
+        }
+
+        /// <summary>
+        /// 手动设置系统时间
+        /// </summary>
+        /// <param name="dt">需要设置的时间</param>
+        /// <returns>返回系统时间设置状态，true为成功，false为失败</returns>
+        public static bool SetLocalDateTime(DateTime dt)
+        {
+            Systemtime st;
+            st.year = (short)dt.Year;
+            st.month = (short)dt.Month;
+            st.dayOfWeek = (short)dt.DayOfWeek;
+            st.day = (short)dt.Day;
+            st.hour = (short)dt.Hour;
+            st.minute = (short)dt.Minute;
+            st.second = (short)dt.Second;
+            st.milliseconds = (short)dt.Millisecond;
+            bool rt = SetLocalTime(ref st);
+            return rt;
+        }
+
+
+        private static IPAddress iPAddress = null;
+        /// <summary>
+        /// 从NTP获取时间更新本地时间
+        /// </summary>
+        /// <param name="host"></param>
+        /// <param name="syncDateTime"></param>
+        /// <param name="message"></param>
+        /// <returns></returns>
+        public static bool Synchronization(string host, out DateTime syncDateTime, out string message)
+        {
+            syncDateTime = DateTime.Now;
+            try
+            {
+                message = "";
+                if (iPAddress == null)
+                {
+                    var iphostinfo = Dns.GetHostEntry(host);
+                    var ntpServer = iphostinfo.AddressList[0];
+                    iPAddress = ntpServer;
+                }
+                DateTime dtStart = DateTime.Now;
+                //NTP消息大小摘要是16字节 (RFC 2030)
+                byte[] ntpData = new byte[48];
+                //设置跳跃指示器、版本号和模式值
+                // LI = 0 (no warning), VN = 3 (IPv4 only), Mode = 3 (Client Mode)
+                ntpData[0] = 0x1B;
+                IPAddress ip = iPAddress;
+                // NTP服务给UDP分配的端口号是123
+                IPEndPoint ipEndPoint = new IPEndPoint(ip, 123);
+                // 使用UTP进行通讯
+                Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
+                socket.Connect(ipEndPoint);
+                socket.ReceiveTimeout = 3000;
+                socket.Send(ntpData);
+                socket.Receive(ntpData);
+                socket?.Close();
+                socket?.Dispose();
+                DateTime dtEnd = DateTime.Now;
+                //传输时间戳字段偏移量，以64位时间戳格式，应答离开客户端服务器的时间
+                const byte serverReplyTime = 40;
+                // 获得秒的部分
+                ulong intPart = BitConverter.ToUInt32(ntpData, serverReplyTime);
+                //获取秒的部分
+                ulong fractPart = BitConverter.ToUInt32(ntpData, serverReplyTime + 4);
+                //由big-endian 到 little-endian的转换
+                intPart = swapEndian(intPart);
+                fractPart = swapEndian(fractPart);
+                ulong milliseconds = (intPart * 1000) + ((fractPart * 1000) / 0x100000000UL);
+                // UTC时间
+                DateTime webTime = (new DateTime(1900, 1, 1, 0, 0, 0, DateTimeKind.Utc)).AddMilliseconds(milliseconds);
+                //本地时间
+                DateTime dt = webTime.ToLocalTime();
+                bool isSuccess = SetLocalDateTime(dt);
+                syncDateTime = dt;
+
+            }
+            catch (Exception ex)
+            {
+                message = ex.Message;
+                return false;
+            }
+            return true;
+
+        }
+    }
+}